Deuteronomy 32:46-50

he said to them, “Take to your heart all the words with which I am warning you today, which you will command your sons to follow carefully, all the words of this Law.

For it is not a trivial matter for you; indeed it is your life. And by this word you will prolong your days in the land, which you are about to cross the Jordan to possess.”

Now the Lord spoke to Moses that very same day, saying,

“Go up to this mountain of the Abarim, Mount Nebo, which is in the land of Moab opposite Jericho, and look at the land of Canaan, which I am giving to the sons of Israel as a possession.

Then you are to die on the mountain where you ascend, and be gathered to your people, as Aaron your brother died on Mount Hor and was gathered to his people,